<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="script/vue-2.4.0.js"></script>
</head>

<body>
    <div id="app"></div>
    <script>
        var arr = [11, 22, 33, 44, 55]
        arr.push(66)
        console.log(arr)
        arr.unshift(1)
        console.log(arr)
        arr.splice(1, 2)
        console.log('删除后' + arr)
    </script>
</body>

</html>